Cement-block mold.



J. T. JORDAN. CEMENT moon MOLD. APPLIOATION FILED APB.5,1909.

Patented Aug.2, 1910.

' INVENTOR Jdm ea ZIJbrdan BY ATTORNEY WITNESSES I JAMES T. JORDAN, F DALLAS, TEXAS.

CEMENT-BLOCK MOLD.

Specification of Letters Patent.

Patented Aug. 2, 1910.

Application filed. April 5, 1909. Serial No. 488,033.

To all whom it may concern:

Be it known that 1, JAMES T. JORDAN, a citizen of the United States, residing at D211? las, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Cement-Block Molds, of which the following is a specification.

My invention relates to new and useful improvements in cement block molds. Its object is to provide a cement block molding machine by the use of which cement blocks may be molded with great rapidity and in any desired number.

Another object is. to provide a cement block mold whose component parts are easily separable, and which is provided with clamping means to assist in assembling said component parts.

A further object is to provide cores for the cement blocks, which may be applied to a plurality of blocks simultaneously, and which are formed in two wedge-shaped components to facilitate their removal.

Finally the object of my invention is to provide a device of the character described which will be strong, simple, durable and efficient and comparatively easy to produce.

iVith these and various other objects in view, my invention has relation to certain novel features of construction and operation, an example of which is described in the following specification and illustrated in the accompanying drawing, wherein:

Figure 1 is a perspective view of the moldflask employed, twelve flask sections being shown, and a core in position in four of said flask sections. Fig. 2 is a perspective view of the frame or base, upon which. said mold sections are assembled. Fig. 3 shows a roller to be used to level the cement in the mold sections. Fig. a represents a hollow, perforated cylinder, provided with handles at its ends, in which will be placed a dry mixture of facing cement, to be sifted in the bottoms of the mold sections, before the plastic cement is introduced therein. Fig. 5 is a perspective view of a triangular trowelboard, or drag, which will be drawn over the mold sections to give a smooth surface to the blocks. Fig. 6 is a top view of one of the binary, wedge-shaped cores, showing the lever and pin used to facilitate the removal of the core, and Fig. 7 is a face-plate of wood or metal, which may be placed in the bottom of a mold section, to give the cement block an ornamental face, containing a counter-sunk rectangle.

Referring now more particularly to the drawings, wherein like numerals of reference designate similar parts of all the figures, the numeral 1 denotes the longitudinal stringers of the frame of the mold, upon which are rigidly fastened the sills 2. Upon one extremity of each sill, is attached the rightangled standard 3, in which is mounted a clamping screw 4. At the other extremity of the transverse sills 2, a plank or platform 5, is mounted upon said sills. The a mold sections are clamped between said platform 5 and the clamping screws 4:.

6 denotes a plurality of longitudinal planks forming the bottom of the mold, and resting upon the transverse sills 2. Between the horizontal planks 6 are placed longitudinal, vertical planks 7, which also rest upon the cross sills 2. At intervals equal to the desired length of a block, the planks 7 are provided with vertical grooves upon their sides, into which fit transverse walls 8, which rest upon the bottom planks 6.

At each side of the mold, are longitudinal, vertical planks 9, which are slightly higher than the mold sections, to prevent the plastic cement from escaping from the mold in passing from one section to another. At one extremity of the mold, vertical. bearings 10 are mounted upon the planks 9, into which fit standards 11, supporting an inclined mortar-board 12. This. board is detachable, and is used in combination with a mechanical cement mixer to conduct the cement from the mouth of said mixer into the mold. The two wedge-shaped components of the core are denoted by numeral 13. Upon one extremity of one of these components is a pin 14, and upon the adjacent extremity of the other component of the core is pivotally mounted a lever 15, whereby pressure may be brought to bear against said pin in orderto loosen the core.

It will of course be noted that by increasing the number of mold sections, it will be possible to produce any desirable number of blocks at a time. Also the cores may be given any desired shape, and if desired two or more cores may be placed in each block; or, if solid blocks are to be made, the cores may be left out, and the longitudinal, vertical planks 7 may be used without the core apertures.

When the mold has been filled with cement, and the blocks have set sufliciently to hold their shape, the cores are withdrawn with the aid of lever 15, and the clamping screws 4 are loosened. The side planks 9 may now be removed, giving access to both sides of the mold, when it is desired to remove the blocks therefrom.

The roller shown in Fig. 3 will be constructed of heavy material. WVhen the cement has been introduced into the mold, this roller will be propelled longitudinally along the mold, agitating and compressing the cement in the sections and forcing the water therefrom.

It is to be noted that a face-plate of any desired design may be placed in the bottoms of the mold sections, Fig. 7 serving only to show a sample of several possible designs.

By omitting several of the short partitions 8 between two of the adjacent, longitudinal partitions 7, it will be seen that the enlarged space thus produced will permit the molding of posts or sills, of any desired length according to the number of transverse partitions omitted. The posts thus made can be given an approximately circular cross-section by placing the longitudinal partitions, between which the post is to be molded, close together, and making said expensive, and by its use concrete blocks may be formed rapidly in any desired number.

What I claim, is:

In a device of the character described, the

combination with a rigid base, of a sectional I mold composed of separable transverse and longitudinal members, means by which the mold members may be clamped together, a two-part core having wedge-shaped components extending through apertures in the longitudinal vertical members of the mold and passing centrally through the mold sections, a pin projecting from one of the core components exterior to the mold, and a lever pivotally mounted upon the other core component in such a manner that by its means pressure may be exerted upon said pin to loosen the core.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES '1. JORDAN. lVitnesses G. B. CoULsoN,

J ESSIE KIRK. 

